load data
 infile 'dump_dir/information_schema_columns.txt'
 BADFILE 'bad_dir/information_schema_columns.txt'
 TRUNCATE
 into table is_column
 fields terminated by X'09'

 ( TABLE_CATALOG	 NULLIF TABLE_CATALOG='NULL'
,TABLE_SCHEMA	 NULLIF TABLE_SCHEMA='NULL'
,TABLE_NAME	 NULLIF TABLE_NAME='NULL'
,COLUMN_NAME	 NULLIF COLUMN_NAME='NULL'
,COLUMN_TYPE	 NULLIF COLUMN_TYPE='NULL'
,ORDINAL_POSITION	 NULLIF ORDINAL_POSITION='NULL'
,IS_NULLABLE	 NULLIF IS_NULLABLE='NULL'
,DATA_TYPE	 NULLIF DATA_TYPE='NULL'
,CHARACTER_MAXIMUM_LENGTH	 NULLIF CHARACTER_MAXIMUM_LENGTH='NULL'
,CHARACTER_OCTET_LENGTH	 NULLIF CHARACTER_OCTET_LENGTH='NULL'
,NUMERIC_PRECISION	NULLIF NUMERIC_PRECISION='NULL'
,NUMERIC_SCALE	NULLIF NUMERIC_SCALE='NULL'
)
